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<pre class="textdiagram" id="fig51">
                      +---------+
                      | Broker  |
                      | statebe |
                      +---------+
                      |  bind   |
                      +---------+
                         state
                           |
                         +-+
                         |
                         v
+---------+---------+---------+
|         |         | connect |
+---------+---------+---------+
|         |         | statefe |
|         |         |   SUB   |
+---------+---------+---------+
|                             |
|           Broker            |
|                             |
+---------+---------+---------+
|         |         |   PUB   |
|         |         | statebe |
+---------+---------+---------+
|         |         |  bind   |
+---------+---------+---------+
                       state
                         |
                         +-+
                           |
                           v
                      +---------+
                      | connect |
                      +---------+
                      | statefe |
                      | Broker  |
                      +---------+
</pre>
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